Ecological Relationships & Symbiosis


UNDERSTANDING LIMITING FACTORS OF A POPULATION IN AN ECOSYSTEM AND THE THREE TYPES OF SYMBIOTIC RELATIONSHIPS

16. Identify density-dependent and density-independent limiting factors that affect populations in an Ecosystem
Examples: Density-dependent—disease, predator-prey relationships, availability of food and water
Density-independent—natural disasters, climate, innate behaviors (migration), human impact


Symbiotic Relationships: Discriminating among symbiotic relationships, including mutualism, commensalism, and parasitism





Part 1

Powerpoint Lectures- Review these if you missed class and/or during study time!

Part 1: Understanding Density Dependent & Density Independent Limiting Factors of Populations
There isn't a note-taking sheet for this powerpoint. Students copied it by hand.(~10 slides)

  • Assignment: DD/DI Limiting Factors (Lesson 21)
Question sheet that goes Limiting Factor pages from the workbook.
  • Assignment- Case Study: Limiting Factors of Yellow Perch in Lake Winnipeg


  • Assignment-SJE Entry: Checks and Balances in Populations



Part 2 Ecological Relationships & Symbiosis

Ecological Relationships & Symbiosis powerpoint notesNote-taking sheet- Ecological Relationships & Symbiosis

Good Buddies Card Game/Activity (Included at the end of the note-taking handout above)